>>5809338>what's a simple tool I can use that anyone can reach into the face mask?Dremel + a diamond bit is best, but since you don't want to buy one for some reason
>Simple small carving knife (e.g Xacto #10 blade)>Round diamond needle file>Woodworking Gouges>Linoleum Gouges (pic)These are all rough material removable tools so go slow.